JPH089841Y2 - Electric searchlight - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an electric searchlight mounted on a roof of a vehicle or the like for use.

[Conventional technology]

Conventionally, various types of searchlights have been used that are mounted on the roof top of a vehicle or the like and use a motor as a drive source for the undulating displacement and turning displacement of the light section. It is built into the table, and each displacement direction rotation system is mechanically configured through a rotation transmission mechanism that uses multiple gears, and the light projection direction is changed by adjusting the undulation angle and turning angle of the lamp section. .

[Problems to be solved by the device]

However, in the above-described conventional searchlight, the rotation transmission mechanism of either the undulating displacement system or the swiveling displacement system must be configured to exceed the other displacement system, so that the structure becomes complicated and the waterproofness also deteriorates. Had the problem of doing.

The present invention was created in view of the above problems,
It is an object of the present invention to provide an electric searchlight that has a simple structure and is excellent in waterproofness in a searchlight that uses a motor as a drive source for the undulating displacement and the turning displacement of the lamp section.

[Means for solving the problem]

The electric searchlight according to the present invention is used in a lamp that uses a motor as a drive source for undulating displacement and turning displacement of a lamp.
The body of the first motor is rotatably pivoted so that the drive shaft is parallel to the undulating shaft horizontally installed with the bearing bracket vertically installed on the lamp body, and the shaft is attached to the drive shaft. The pinion is engaged with a gear wheel formed on the bearing bracket, and a swing bracket having a fixed lamp is rotatably attached to a swing shaft erected on the body of the first motor. On the other hand, the second motor is fixed so that the turning shaft and the drive shaft are parallel to each other, and the pinion axially attached to the drive shaft is engaged with the gear wheel formed on the body of the first motor. It is what

Further, it is preferable that both the motors are geared motors having a speed reduction mechanism built therein.

[Action]

According to the above configuration, when the first motor is driven to rotate, the pinion pivotally attached to the drive shaft meshes with the gear wheel of the bearing bracket, so that the body of the first motor rotates about the undulating shaft as the center of rotation. It moves, and the light part is turned in the latitudinal direction through a turning bracket pivotally installed on the top of the body.

Further, when the second motor is rotationally driven, the pinion axially attached to the drive shaft meshes with the gear wheel formed on the body of the first motor, so that the swing bracket on which the second motor is fixed is fixed. It rotates about the turning axis to change the lamp unit fixed to the turning bracket in the longitudinal direction.

By rotating and driving both the motors, the direction of the lamp portion can be changed and the illumination can be performed in a desired direction.

Further, since the rotation transmission mechanism of both motors meshes with the pinion a gear wheel having a sufficiently large diameter, it is possible to reduce the torque of the drive source, thereby achieving downsizing of the motor and the entire device. You can

〔Example〕

An embodiment of an electric searchlight according to the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes a lamp body that is fixed to the upper surface of a carry C attached to the roof of an automobile, for example, by fastening means (not shown) such as a screw, and the upper surface of the lamp body 1. A pair of bearing brackets 2 and 3 facing each other are erected upright, and an undulating shaft 4 is horizontally installed on both bearing brackets 2 and 3. Further, 5 is a first motor such as a geared motor having a built-in reduction mechanism in which one end of the body is pivotally mounted so that the drive shaft is parallel to the undulating shaft 4 with respect to the undulating shaft 4. The pinion 6 rotatably mounted on the drive shaft of the first motor 5 is meshed with the gear wheel 7 formed on the bearing bracket 2 on the one side. Reference numeral 8 denotes a turning bracket which is rotatably attached to a turning shaft 9 which is erected upright on the body of the first motor 5 so as to be orthogonal to the hoisting shaft 4, and the illumination lamp 10 is provided with the turning lamp 8. On the other hand, a mounting shaft 11 protruding laterally is fixed so that its axis coincides with that of the swivel shaft 9. A second motor 12 such as a geared motor having a built-in reduction mechanism is fixed to the swing bracket 8 such that the swing shaft 9 and the drive shaft are parallel to each other. It is meshed with a gear wheel 14 formed on the body of one motor 5. Fifteen
Is a bootstrap bead 17 which covers the turning bracket 8 including the lamp body 1, the first motor 5 and the second motor 12, and has a groove 16 formed in the lower end portion around the outer periphery of the base of the lamp body 1.
Is a waterproof boot made of a soft synthetic resin or rubber that is airtightly adhered to, and the mounting shaft 11 of the illumination lamp 10 is fixed to the swivel bracket 8 by inserting a small hole 18 formed at the center of the top. At the same time, the upper half of the waterproof boot 15 has a bellows structure, which is deformed following the displacement of the turning bracket 8 in the latitudinal direction.

According to the above configuration, when the first motor 5 is rotationally driven,
Since the pinion 6 axially attached to the drive shaft meshes with the gear wheel 7 formed on the bearing bracket 2, the first motor 5 rotates about the undulating shaft 4 in a range of about 90 degrees as shown in FIG. Then, the illuminating lamp 10 is displaced via the turning bracket 8 in the depression angle or the elevation angle. Numerals 19 and 19 are stoppers that regulate the range of rotation in the latitude direction (arrow A).

Further, when the second motor 12 is rotationally driven, the pinion 13 axially attached to the drive shaft meshes with the gear wheel 14 formed on the body of the first motor 5, so that the swivel bracket 8 as shown in FIG. Rotates about the turning shaft 9, and the illumination lamp 10 fixedly mounted on the turning bracket 8 is pivotally displaced in the longitudinal direction in a range of about 180 degrees. Numerals 20 and 20 are stoppers for restricting the range of rotation in the direction of lightness (arrow B).

Therefore, in the electric searchlight having the above structure, the first motor 5 and the second motor 12 are independently driven and controlled by remote control, and the orientation of the illumination lamp 10 in the latitude direction and the orientation of the longitude direction is changed. .

[Effect of device]

Since the electric searchlight according to the present invention is configured as described above, the rotation transmission mechanism can be extremely simplified by mounting the structure of the undulation displacement system on the structure of the undulation displacement system.

Further, since the rotation transmission mechanism of both motors meshes with the pinion a gear wheel having a sufficiently large diameter, it is possible to reduce the torque of the drive source and to downsize the motor. Since the entire device can be downsized, and the waterproof property is excellent, the practical effect after implementing the present invention is extremely large.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view showing an embodiment of an electric searchlight according to the present invention, FIG. 2 is an exploded perspective view of the essential portion, and FIG. 3 shows a rotating action by a first motor. FIG. 4 is a front view of an essential part, and FIG. 4 is a plan view of the essential part showing the turning action of the second motor. 1 …… Lighting body, 2,3 …… Bearing bracket 4 …… Release shaft, 5 …… First motor 6,13 …… Pinion 7,14 …… Gear wheel, 8 …… Swivel bracket 9 …… Swivel axis, 10 …… Lighting lamp 12 …… Second motor, 15 …… Waterproof boots

Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI Technical display area F21V 21/30 C

Claims (1)

[Scope of utility model registration request] 1. A lamp fixture in which undulation displacement and swing displacement of a lamp part are driven by a motor as a drive source. Is rotatably pivoted so that the drive shafts are parallel to each other, a pinion axially attached to the drive shaft is meshed with a gear wheel formed on the bearing bracket, and a swing bracket having a fixed lamp portion is firstly installed. The second motor is rotatably pivotally attached to a swing shaft erected on the body of the motor, and the second motor is fixed to the swing bracket so that the swing shaft and the drive shaft are parallel to each other. An electric searchlight having a structure in which a worn pinion is meshed with a gear wheel formed on the body of the first motor.